Benefits of juvenile stand management in Finland—impacts on wood production based on scenario analysis

IF 3 2区 农林科学 Q1 FORESTRY
Forestry Pub Date : 2020-05-14 DOI:10.1093/forestry/cpz075
S. Huuskonen, Soili Haikarainen, Tiina Sauvula-Seppälä, H. Salminen, M. Lehtonen, J. Siipilehto, A. Ahtikoski, K. Korhonen, J. Hynynen
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引用次数: 9

Abstract

We evaluated the impacts of juvenile stand management on wood production based on a nationwide scenario analysis. Measured plot-level information of the Finnish 11th National Forest Inventory (NFI) from juvenile stands formed the initial data for the analysis. To represent a total of 2.5 million hectares of productive forest land available for wood production, 6900 sample plots were selected. We predicted the development of the sample-plot stands for the next 100 years using the Motti stand simulator. We examined the impacts of juvenile stand management, including early cleaning and precommercial thinning, with three scenarios of different intensities of early-stage management (intensive, no management and business-as-usual). The results showed the benefits of juvenile stand management: earlier harvesting revenues, larger total removals, more valuable wood in the removals, and additional benefits that are associated with the first commercial thinning (i.e. no need for clearing before thinning, a larger stem size of removed trees). The main downside of juvenile stand management was the cost of the early cleaning and precommercial thinning. According to the results, a €560 million increase in costs would result in a €1700 million increase in stumpage earnings in Finnish forests during the next 100-year period. The 34 million m3 increase in the sawlog yield together with 28 million m3 decrease in the pulpwood yield also demonstrated the nationwide potential for increasing valuable sawlog production by intensive management of juvenile stands.
芬兰林分管理的效益——基于情景分析对木材生产的影响
在全国情景分析的基础上,评价了林分管理对木材生产的影响。芬兰第11次国家森林清查(NFI)幼林的样地水平测量信息构成了分析的初始数据。为了代表总共250万公顷的可用于木材生产的生产性林地,选择了6900个样地。利用Motti林分模拟器对样地林分未来100年的发展进行了预测。研究了不同早期管理强度(集约化、不管理和正常经营)的三种情况下,包括早期清理和商业前间伐在内的林分管理对林分的影响。结果显示了幼林管理的好处:早期采伐收入,更大的总采伐量,采伐中更有价值的木材,以及与第一次商业间伐相关的额外好处(即在间伐之前不需要清理,采伐树木的茎粗更大)。幼林管理的主要缺点是早期清洁和商业化前间伐的成本。根据研究结果,在未来100年期间,增加5.6亿欧元的成本将使芬兰森林的立木收益增加17亿欧元。锯木产量增加了3400万立方米,纸浆材产量减少了2800万立方米,这也表明,通过集约化管理幼林,全国有潜力增加有价值的锯木产量。
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来源期刊
Forestry
Forestry 农林科学-林学
CiteScore
6.70
自引率
7.10%
发文量
47
审稿时长
12-24 weeks
期刊介绍: The journal is inclusive of all subjects, geographical zones and study locations, including trees in urban environments, plantations and natural forests. We welcome papers that consider economic, environmental and social factors and, in particular, studies that take an integrated approach to sustainable management. In considering suitability for publication, attention is given to the originality of contributions and their likely impact on policy and practice, as well as their contribution to the development of knowledge. Special Issues - each year one edition of Forestry will be a Special Issue and will focus on one subject in detail; this will usually be by publication of the proceedings of an international meeting.
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